The content of J.R.R. Tolkien's mythology, The Silmarillion, has been the subject of considerable exploration and analysis for many years, but the logistics of its development have been mostly ignored and deserve closer investigation. Tolkien made a continuous effort over six decades to construct a comprehensive mythology, to include not only the stories themselves but also the storytellers, scribes, and bards who were the offspring of his thought. In Interrupted Music Flieger illuminates the structure of Tolkien's work, allowing the reader to appreciate its broad, overarching design and its careful, painstaking construction.